I am trying to modify deepstream osd plugin i.e. /opt/nvidia/deepstream/deepstream-5.0/sources/gst-plugins/gst-nvdsosd/gstnvdsosd.c. There I am using nvll_osd_draw_segment_masks function to add some masks performed in the screen. It runs well. But since it started, the “host mem” shown in nvtop command is raising. I doubt whether it means a mem leak. When I remove the nvll_osd_draw_segment_masks funtion, the “mem leak” disappears. I am considering this “mem leak” may in the nvll_osd_draw_segment_masks funtion or I am misused this function. How can I solve this?
here is my system info：
Ubuntu 18.04.3
deepstream-app version 5.0
DeepStreamSDK 5.0
CUDA Driver Version: 11.0
CUDA Runtime Version: 10.2
TensorRT Version: 7.0
cuDNN Version: 7.6
libNVWarp360 Version: 2.0.1d3
Display Driver version: 450.80.02
Gstreamer version: 1.14.5
OpenCV version: 3.4.0
Hardware Platform GPU
Issue Type( question or bugs)
Before I modify the osd plugin, host mem keeps unchanged for weeks. And also after changing the osd plugin, if I just commont the nvll_osd_draw_segment_masks function, the host mem keeps unchanged.
I checked the segmentation samples in the deepstream path only to find no sample contains the osd plugin. So I can not find a sample using osd plugin to draw masks to see whether the problem result in the the nvll_osd_draw_segment_masks function or the way I used it.
The maskrcnn model test runs for 4 hours, if I check the host mem every ten minites, the value keeps increasing. After 4 hours the mem increases about 530MiB.
deepstream-app-with-mrcnn.rar (124.9 KB)
That is the code. It can be built in the same folder with sample code deepstream-app. The README contains some instructions. Wish for you reply soon.
the origin code is from the sample code deepstream-app with few changes signed by “hhh.”. the lib is from the orgin code deepstream-mrcnn-app with no change and It provides a function called osd_sink_pad_buffer_probe. Below shown is already in the README.
origin code is the sample deepstream-app
code modified only in “Makefile” and “deepstream_app.c” is signed with “hhh.”
use config “mrcnn_test.txt” as input
The libdeepstream_mrcnn_test.so is build in the folder …/deepstream-mrcnn-app/ with origin sample code
host_mem can be got with cmd “nvtop”，“ps -avx” or “top”.
I try to repro the issue, but can not. this is the log run when app start for a few seconds and after 4 hour. i used deespstream 6.0EA, did we have any difference still? i got the code from comment 10# link.